Load Option: command line and args

in addition to #27 allowing hWnds, maybe I should allow specifying a path to the executable, and/or command-line options (allowing it to run `use Win32::Mechanize::NotepadPlusPlus qw/-- c:\path\to\notepad++.exe -multiInst/;` or similar syntax, which will allow spawning a new instance, or a specific version, or what have you (that would be useful for remote testing purposes, too)